I think ECL is the logic family you want.
/\/\/\/*=Martin
----- Original Message -----
From: "Ted Mawson"
To:
Sent: Monday, February 18, 2002 12:13 PM
Subject: [PIC]: logic gate speeds
> The maximum clock speed I understand that a PIC can count at is 50 MHz -
correct?
>
> I want to count at higher frequencies - up to 500 MHz and I'm looking to
use a logic counter to divide 500 by 16 and give an input frequency into the
PIC of 500/16 = 31.25 MHz.
>
> There's a 7400 series chip, the 74F161 that divides by 16 but the max i/p
frequency is 100 MHz. Are there any 7400 series other than F that can go
faster or any equivalents that y'all know of?
>
> Can anyone point me to a counter, ideally pre-settable and with accessible
(to read) outputs, that could take a clock input for counting faster than
100 MHz and divide by 16?
>
> Ted Mawson
> PICman@portfoliopm.com
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways. See http://www.piclist.com/#archives for details.
>
>
--
http://www.piclist.com hint: The PICList is archived three different
ways. See http://www.piclist.com/#archives for details.